2000
The effects of RARa and RXRa proteins on growth, viability and differentiation of v-myb-transformed monoblasts
VODIČKA, Petr; Sabina ŠEVČÍKOVÁ; Jana ŠMARDOVÁ; Karel SOUČEK; Jan ŠMARDA et. al.Základní údaje
Originální název
The effects of RARa and RXRa proteins on growth, viability and differentiation of v-myb-transformed monoblasts
Autoři
Vydání
Blood Cells, Molecules and Diseases, Orlando, Florida, Academic Press, 2000, 1079-9796
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30205 Hematology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.897
Kód RIV
RIV/00216224:14310/00:00003362
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000089957500014
Klíčová slova anglicky
v-myb; retinoic acid receptors; transactivation; proliferation; differentiation
Změněno: 20. 10. 2025 15:52, Mgr. Petra Trembecká, Ph.D.
Anotace
V originále
Retinoids are important agents which regulate differentiation and proliferation processes in various cell types, including cancer cells. Growth arrest and induction of terminal differentiation demonstrate the tumor-suppressive effects of retinoids on leukemic cells. We studied differentiation, proliferation, and death processes in the cell line of v-myb-transformed monoblasts BM2 and their retinoic acid receptor (RAR) alpha- and retinoid X receptor (RXR) ct-expressing derivatives after exposure to four different retinoids: all-trans retinoic acid, 9-cis retinoic acid, TTNPB, and LG1000153. The effects of retinoids on the phenotype of BM2, BM2RAR, and BM2RXR cells were correlated with the transcription activation function of the v-Myb oncoprotein of avian myeloblastosis virus. We found that the efficiency of terminal differentiation of BM2RAR and BM2RXR cells induced by retinoids is indirectly proportional to the v-Myb transcription activation activity. In contrast, the effects of liganded retinoid receptors on growth of BM2 cells are more complex. Activated RAR protein induces growth inhibition of BM2 cells by suppression of v-Myb function. However, liganded RXR protein is less efficient in cell cycle arrest and rather decreases cellular viability. This process can occur in the presence of active v-Myb protein. These results suggest that ligand-activated RAR alpha protein is primarily engaged in control of proliferation and differentiation of v-myb-transformed monoblasts, while activated RXR alpha protein controls their differentiation and death, (C) 2000 Academic Press.
Návaznosti
| GA312/98/0679, projekt VaV |
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